CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    2 | Mainly Beta | 
 
	 | 
    2.60 | Sandwich | 
 
	 | 
    2.60.40 | Immunoglobulin-like | 
 
	 | 
    2.60.40.10 | Immunoglobulins | 
Domain Context
CATH Clusters
| Superfamily | Immunoglobulins | 
| Functional Family | Interleukin-21 receptor | 
Enzyme Information
UniProtKB Entries (1)
| Q9HBE4 | 
						 IL21_HUMAN 
						Homo sapiens 
						Interleukin-21 
					 | 
				
PDB Structure
| PDB | 3TGX | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | 
					 The crystal structure of the interleukin 21 receptor bound to interleukin 21 reveals that a sugar chain interacting with the WSXWS motif is an integral part of the interleukin 21 receptor. 
					    
					    J.Biol.Chem. 
					    
					 | 
			
